Rolling mill



July 19,1932- A A. ESSER .f 1,868,227.

ROLLING MILL Filedxoct. 23,'V 1929 if. 2 L.

Patented July- 19, `1932 PATENT OFFICE HEINRICH ESSEB, OF HILDEN, GERMANY ROLLING MILL Application med October 23, 1929, Serial No. 401,787, and in. Germany January 7, 1929.

My invention relates to rolling mills, and more particularly to mechanism for driving inclined rolls from the pinions of roll-ing mills.

It is an object of my invention to eliminate certain drawbacks which are connected with the arrangement of three inclined rolls in connection with a mechanism of the kind described if it is desired to support each roll in bearings at either end, as will be explained below.

To thisend I connect only two of the three rolls with driving mechanism from the pinions. The two driven rolls are arranged substantially vertically one above the other and the pinions are arranged in the extension of the axial plane of these two driven rolls at an angle to the axis of the mill.

It is desirable that the three rolls should bc supported in bearings at either end, as in this manner they are supported satisfactorily and can be adjusted very exactly and as the mandrel with the tubular blank on it is automatically centered. .However, this arrangement as heretofore designed involves the drawback that it is necessary to provide the pinions with a hollow shaft for the blank which is a difiicult and expensive construction.

According to my invention the pinions are arranged on the side of the axis of the rolling mill in which the blank is fed on the mandrel and therefore do not interfere with the blank. At the same time the pinion housing is simplified and its initial cost is reduced.

In the drawing aflixed to this specification and forming part thereof a rolling mill embodying my invention is illustrated diagrammatically by way of example.

In the drawing:

Fig. 1 is an elevation showing the three inclined rolls and the pinion housing,

Fig. 2 is a plan view'of Fig. 1.

Referring now to the drawing, 1 is the bed of the rolling mill, 2 is the mandrel, 3 is the mandrel rod, and 4 is the blank on the rod. 5 and 6 are the housings of the inclined rolls 7, 8 and 9. It will appear that each roll has a bearing in the housing 5 at one'end and in the housing 6 at the other end. The rolls 7 and 8 are arranged in vertical or substan-` t1a1ly vertical position above each other.

10 is the pinion housing which is arranged at the side of the bed 1 at an angle correspondmg to the angle which the axial plane of the two vertically superimposed rolls 7, 8 includes with the axis of the mill, and 11 and 12 4are driving shafts .extending from the pinions in the housing to the rolls 7 and 8, respectlvely, to which they are connected by suitable knuckles or the like. Rotation is imparted to the pinions by a pulley 13.

I wish it to be understood that I do not desire to be limited to the exact details of construction shown and described for obvious modifications will occur to aperson skilled in the art.

In the claims afiixed to this specification no selection of any particular modification of the invention is intended to the exclusion of other modifications thereof and the right to subsequently make claim to any modification not covered by these claims is expressly reserved.

I claim 1. A rolling mill having three inclined rolls, a mandrel adapted to expand a tubular1 blank between said rolls and bearings for said rolls at either end, a pinion housing arranged laterally with respect to the axis of saidmillin which said blank is fed and driving mechanism extending from said housing to two of said rolls.

2. A rolling mill having three inclined rolls, a mandrel adapted to expand a tubular blank between said rolls and bearings for said rolls at either end, the arrangement of two of said rolls with their axes in a vertical plane at an angle to the axis of said mill in which said blank is fed, a pinion housing arranged in the extension of -said vertical plane and driving mechanism extending in said vertical plane from said housing to said two rolls. I

In testimony whereof I afiix my signature.

HEINRICH ESSER. 

